[%c_effect h1;square;h1;type;GreatFind;persistent;true] The rook is very annoying on the h-file.
37... e6f5 It's surprising to me to see Giri lose an endgame like this, but strange things happen in rapid games. 38. h4f2  38... f5e6  39. f2g3 [%c_effect g3;square;g3;type;GreatFind;persistent;true] 39... g6f5 [%c_effect f5;square;f5;type;Mistake;persistent;true] A serious inaccuracy, after which Black's position becomes surprisingly difficult.